just this week the fbi announced it actually knows who the thieves are. what more do we know about it? >> the fbi's priority has always been to get the art back and return it to the walls of the museum. more so even than nabbing the thieves. but apparently, they have finally figured out who did this, who is behind it. the fbi believes the thieves belong to a criminal organization they say is based in new england and the midatlantic states. they aren't naming the thieves because they say this is an ongoing investigation, but here's the thing, anderson. the thieves can't be charged anyway because the statute of limitations has expired. now, in terms of the artwork itself, investigators don't believe the thieves actually still have the artwork, so they're offering this possible immunity to anyone who comes forward with information about it. the fbi thinks the thieves actually tried to sell the art about ten years or so ago in philadelphia. that would have been more than a decade after the heist itself. that deal never happened and unfortunately, the investig